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dispatcher.cr
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dispatcher.cr
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module Tourmaline
# The Dispatcher is responsible for dispatching requests to the appropria
class Dispatcher
getter middleware : Array(Middleware)
getter event_handlers : Hash(UpdateAction, Array(EventHandlerType))
def initialize(@client : Client)
@middleware = [] of Middleware
@event_handlers = {} of UpdateAction => Array(EventHandlerType)
end
def process(update : Update)
actions = UpdateAction.from_update(update)
context = Context.new(@client, update)
@middleware.each do |middleware|
begin
middleware.call_internal(context)
rescue stop : Middleware::Stop
return
end
end
actions.each do |action|
if handlers = @event_handlers[action]?
handlers.each do |handler|
handler.call(context)
end
end
end
end
def on(*actions : UpdateAction, &block : Context ->)
actions.each do |action|
@event_handlers[action] ||= [] of EventHandlerType
@event_handlers[action] << block
end
end
def register(handler : EventHandler)
handler.actions.each do |action|
@event_handlers[action] ||= [] of EventHandlerType
@event_handlers[action] << handler
end
end
def use(*middlewares : Middleware)
middlewares.each do |middleware|
@middleware << middleware
end
end
def use(*middlewares : Middleware.class)
middlewares.each do |middleware|
@middleware << middleware.new
end
end
end
end